I like them both, but for my meager $.02, I'd like a less horizontal crop on the first image. I have no problem at all with the downed log, but find that the big rock on the lower left is cropped a little too close to the edge of the image for me. I'd like a little more water under it, and think a bit more of the rock in the very corner might bounce our eye back to the middle better. Even a little more of the top and the vertical waterfall would improve it, as it would give it a little more presence and balance. To me, the first shot has plenty of interest, without being overly complex at all.